P3P: policyref="https://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"

Largely abandoned format for declaring website's privacy policy in machine-readable format. The only reason for many websites to use the header was that old versions of Microsoft Internet Explorer disallowed third-party cookies on websites missing P3P.

Location: https://cm.creativecdn.com/adx/cm?v=2&pi=adx&tdc=sin&chain=&google_gid=CAESEBTJp_x6C85IzhLes2a7nb4&google_cver=1&google_ula=5153224,0

The HTTP Location header is being returned by a server to redirect the web browser to a new URL of the requested resource. The URL may be relative (/index.html) or absolute (https://example.com).

Server: HTTP server (unknown)

Announces web server software and optionally version details.

X-XSS-Protection: 0

Controls an Cross-Site Scripting (XSS) filters built into the majority of web browsers. The filter is usually turned on by default anyway, but requirement to set the header to 1 became part of canonical set of "secure" HTTP headers. Over time, vulnerabilities in the "sanitizing" mode filter were found, so 1; mode=block became the recommended value. Some companies decided that they don't really need a browser-side XSS filter to mess with their web services which are XSS-free anyway and they became consciously disabling the XSS filter by setting the header to 0.